BLM18BA750SN1D

Chip Ferrite Bead Overview

The Murata BLM18BA750SN1D is a single-line chip ferrite bead from the EMIFIL BLM18BA series, designed for high-speed signal line noise suppression. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component provides an impedance of 75 Ohms at a test frequency of 100 MHz with a tolerance of 25%. It supports a maximum DC current of 300 mA and has a maximum DC resistance of 700 mOhms. The device operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Suppresses high-frequency electromagnetic interference in high-speed signal lines
• Automotive-grade reliability certified under AEC-Q200 standards
• Compact 0603 footprint suitable for space-constrained PCB layouts

Chip Ferrite Bead Applications

• High-speed digital signal line filtering
• Automotive electronic circuit noise suppression
• Portable device power and signal integrity management

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D against the official Murata datasheet to confirm packaging type and terminal finish. Ensure the procurement source provides valid RoHS3 compliance documentation. Cross-reference the manufacturer part number with authorized distributor lists to avoid counterfeit components. Confirm that the delivered lot matches the specified impedance and current ratings.

Chip Ferrite Bead Selection Notes

Select this component when a 75 Ohm impedance at 100 MHz is required for single-line noise attenuation. The 300 mA current rating limits suitability for high-power applications; verify circuit load currents do not exceed this threshold to prevent saturation. The 0603 package size dictates board space availability. Consider the 700 mOhm DC resistance impact on voltage drop in sensitive low-voltage signal paths.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM18BA series of EMIFIL chip ferrite beads. The series is engineered specifically for suppressing high-frequency noise in high-speed signal lines. The BLM18BA variant typically offers optimized characteristics for automotive and industrial applications, distinguishing it from general-purpose ferrite beads through its robust thermal and electrical performance specifications.

Chip Ferrite Bead Replacement Considerations

The BLM18BA750SZ1D is a documented alternative within the same series, differing primarily in packaging configuration rather than electrical function. Verify that any substitute maintains the 75 Ohm impedance at 100 MHz and the 300 mA current rating. Ensure the replacement component fits the existing 0603 footprint and meets the same AEC-Q200 qualification requirements.